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3TZF—6型甜菜中耕追肥机是为甜菜等作物设计的中耕除草、追肥、松土及培土等多功能新型田间管理机具。该机设计主要性能指标为:行距以45厘米平作为主,50、60、70厘米可调,并兼顾垅作;作业速度,施肥时为4～6公里/小时,除草松土为3～5公里/小时,一次作业杀草率为85％以上,伤苗率在5％以下;配套动力为铁牛—55拖拉机(45厘米行距配置窄轮装置)并兼顾东方红—75、东方红—28拖拉机。于1984、1985年共试制样机三台,相继在黑龙江省农业机械化研究所农场,轻工业部甜菜糖业科学研究所农场及哈尔滨市郊区农村进行了大面积45厘米行距的平作甜菜地、大豆地中耕除草、松土除草、追肥、培土作业试验。其间还进行了70厘米行距垄作
3TZF-6 sugar beet cultivating machine is designed for sugar beet and other crop cultivation weeding, top dressing, loosening and earthwork and other multi-functional new field management equipment. Main features of the machine design indicators: 45 cm line spacing as the main, 50,60,70 cm adjustable, and take into account; operating speed, fertilization of 4 ~ 6 km / h, weeds of loose soil 3 to 5 Km / h, a work kill more than 85% of the grass, wound injury rate of less than 5%; supporting power for the tractor -55 tractor (45 cm row configuration narrow wheel device) and take into account the East Red -75, . In 1984 and 1985, a total of three prototypes were trial-manufactured, and a large area of 45 cm row-spacing beet was cultivated on the farms of Heilongjiang Provincial Institute of Agricultural Mechanization, the Beet Sugar Industry Research Institute of Ministry of Light Industry and the suburbs of Harbin. Weeding, weeding, top dressing, earthwork test. In the meantime, there was also a 70 cm row spacing ridge